/Engine/Source/Runtime/SlateCore/Public/Widgets/SWidget.h
The widget should respond by populating the OutDrawElements array with FDrawElements that represent it and any of its children.
The maximum layer ID attained by this widget or any of its children.
int32 Paint ( const [FPaintArgs](API\Runtime\SlateCore\Types\FPaintArgs) & Args, const [FGeometry](API\Runtime\SlateCore\Layout\FGeometry) & AllottedGeometry, const [FSlateRect](API\Runtime\SlateCore\Layout\FSlateRect) & MyCullingRect, [FSlateWindowElementList](API\Runtime\SlateCore\Rendering\FSlateWindowElementList) & OutDrawElements, int32 LayerId, const [FWidgetStyle](API\Runtime\SlateCore\Styling\FWidgetStyle) & InWidgetStyle, bool bParentEnabled ) const